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ARDEN HILLS CITY COUNCIL - JANUARY 10,2000 9 . Anothcr option being considercd with this proj ect was to turn Tiller Lane and Cannon Avenue into cul-de-sacs. Financially, this option did not make sense because the cost to construct the cul-de-sacs would be more than rcconstructing Cannon Avenue. The City Engineer was recommending that the City not pursue this alternative. The project also included a possible rcconsideration of the street widths. The standard street width for the City was 32 feet, face to face. Based on maintenance, engineering, driving and parking needs, 28 feet could be considered by the City Council in some cases and 24 feet for the cul-de-sacs. Ingerson Avenue and Hamline Avenue are both State Aid roads and the minimum allowable width for State Aid was 28 feet, providing that parking is banned from both sides of the streets. With regard to the concerns of speed on Ingerson Avenue, Mr. Brown stated that stop signs could be incorporated at the intersection of Fernwood Road and Ingerson Avenue. Speed bumps had been considered, however, he would recommend against speed bumps. He indicated that street width was a factor in traffic speed and this would have to be considered. Mr. Brown stated that the scope of the pond improvements had been included as alternatives because there was a wide range of possibilities. Ideally, the ponds would be constructed to NURP standards under which there is a formula which calculates the size of pond needed according to the amount of land that drains to it. When a pond is built to NURP standards it reduces the amount of pollution running into the natural water bodies down stream by approximately 60 to 80 percent. The Rice Creek Watershed District uses these standards for all new construction. . Mr. Brown stated that the forces against building the proposed ponds to NURP standards would be the impact to the trees, wetlands and other natural vegetation. The intent would be to construct ponds that clean the runoff water without impacting the natural area. It may be possible to meet the NURP standards by building the ponds as close to Highway 52 as possible. It may also be possible to design the ponds to weave around the existing trees in the low areas. Mr. Brown stated that the Rice Creek Watershed District and the neighborhood will be heavily involved in deternlining the trade-offs of these options. With regard to the Fernwood channel, Mr. Brown stated that the channel was located in an area between developed lots. The Association has ownership over part of the channel and uses it for access to the lake. The scope of work on the channel will be subject to involvement ofthe Association, the water quality needs of the Rice Creek Watershed, and the neighborhood impacts and aesthetics. Mr. Brown presented the current City street standards for a typical street and the reasons for these standards. . Mr. Brown stated that the standard width for a two way street was 32 feet face to face, which allows for parking on both sides. The two-way traffic on a 32-foot street is limited by eight-foot lanes. Parking on both sides of a 32-foot street generally results in slower traffic. The City standards allow for eight to 10 feet on either side of the right-of-way. The publicly owned right-